Improved Electrocardiographic Criteria for the Diagnosis of Inferior Myocardial Infarction
Improved Electrocardiographic Criteria for the Diagnosis of Inferior Myocardial Infarction
复制标题
改进的心电图诊断下壁心肌梗塞标准
DOI：
10.1161/01.cir.66.2.422
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发表时间：
1982
期刊：
影响因子：
37.8
通讯作者：
H. Smulyan
中科院分区：
文献类型：
--
作者：
R. Warner;N. Hill;R. N. P. R. Sheehe;S. Mookherjee;C. Fruehan;H. Smulyan
提出了诊断下壁心肌梗死（IMI）的新心电图（ECG）标准。该标准基于额平面中心向量图 (VCG) QRS 环的部分与导联 II 和 III 中记录的 ECG QRS 复合波的相应部分之间的关系。所提出标准的应用要求使用三通道心电图机获得描记，以便可以检查导联 II 中的 QRS 波群与同时记录的导联 III 中的 QRS 波群之间的时间关系。这种类型的心电图分析可以预测 VCG QRS 环轮廓的重要特征。拟议的 IMI 诊断心电图标准是：在额状面没有逆时针旋转的情况下，(1) 导联 II 中的 Q 波为 30 毫秒或更长，或 (2) 初始下力从导联 III 回归到导联 II。拟议的心电图标准在 333 名患者的初始系列中进行了评估，并使用盲实验设计在 94 名患者的验证系列中进行了评估。所提出的标准的性能在统计上优于两组心电图 Q 波标准，并且与 Starr 等人的 VCG 标准相当。
New electrocardiographic (ECG) criteria for the diagnosis of inferior myocardial infarction (IMI) are proposed. The criteria are based upon the relationships between portions of the vectorcardiographic (VCG) QRS loop in the frontal plane and the corresponding portions of the ECG QRS complexes recorded in leads II and III. The application of the proposed criteria requires that the tracings be obtained with three‐channel ECG machines so that the temporal relationships between the QRS complexes in lead II and those in simultaneously recorded lead III can be inspected. This type of analysis of the ECG permits important features of the contour of the VCG QRS loop to be predicted. The proposed ECG criteria for the diagnosis of IMI are: in the absence of counterclockwise rotation in the frontal plane, (1) Q waves of 30 msec or longer in lead II or (2) regression of initial inferior forces from lead III to lead II. The proposed ECG criteria were evaluated in an initial series of 333 patients and, using a blind experimental design, in a confirmatory series of 94 patients. The performance of the proposed criteria was statistically superior to that of two sets of ECG Q‐wave criteria and comparable to that of the VCG criteria of Starr et al.